10th Class Science Sources of Energy Question Bank 10th CBSE Science Sources of Energy

  • question_answer
      Mention any two advantages and two disadvantages of producing hydroelectricity by building dams on rivers.

    Answer:

                      Advantages: (i) The generation of electricity from water does not produce any environmental pollution. (ii) Water energy is a renewable source of electric energy which will never get exhausted. Disadvantages: (i) A vast variety of flora and fauna (plants and animals) get affected. (ii) Dams can be constructed only at a limited number of places.


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